Gravity garage door opener rails are C Channel with the following parameters:

Sectional/ Belt Rail
- Available: one-piece rail, two-piece rail, three-piece rail
- 1.2mm thick steel guide rail
- Belt drive
- 7', 8', 10' C channel rail

Single Piece/ Chain Rail
- Available: one-piece rail, two-piece rail, three-piece rail
- 1.2mm thick steel guide rail
- Chain drive
- 7', 8', 10' C channel rail